GB1204947A - Internal combustion engine with fuel injection - Google Patents

Internal combustion engine with fuel injection

Info

Publication number
GB1204947A
GB1204947A GB28439/68A GB2843968A GB1204947A GB 1204947 A GB1204947 A GB 1204947A GB 28439/68 A GB28439/68 A GB 28439/68A GB 2843968 A GB2843968 A GB 2843968A GB 1204947 A GB1204947 A GB 1204947A
Authority
GB
United Kingdom
Prior art keywords
peripheral wall
sharp edge
fuel
radius
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28439/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19671576004 external-priority patent/DE1576004A1/en
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1204947A publication Critical patent/GB1204947A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/108—Swirl flow, i.e. the axis of rotation of the main charge flow motion is vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/12—Other methods of operation
    • F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

1,204,947. I. C, engine combustion chambers. DAIMLER-BENZ A.G. June 14, 1968 [June 24, 1967], No.28439/68. Heading F1B. In an internal combustion engine in which fuel is injected into a combustion chamber in the direction of an air flow guided along the combustion chamber peripheral wall, the peripheral wall extends in at least a part of the total periphery, with a continuously decreasing radius in the direction of the air flow and in the region before the ignition source merges into the portion of the peripheral wall having the largest radius by means of a wall portion defining a sharp edge and lying in a radial plane. The combustion chamber 2, Fig.1, is formed in the piston 1 and has its peripheral wall 3 decreasing in radial distance for the piston axis 11 in the direction 10 of a circular movement of the air imparted by means provided in the inlet valve 6 or in the inlet passage. At its position of least radius, the peripheral wall 3 forms a sharp edge 4 with a wall portion 5 lying in a radial plane and serving to join this portion to the portion of greatest radius. The turbulence occuring in the region of the sharp edge 4 produces intimate mixing of fuel and air, and the reduction of pressure occuring downstream of the sharp edge brings the mixture into vapour form in front of or below a spark plug or glow plug 9, which is located 15 degrees to 25 degrees downstream of the sharp edge 4. As shown, the fuel jets 12 from the fuel injection nozzle 8 are entrained by the rotating air current before reaching the peripheral wall 3, but in another arrangement, Fig.2 (not shown), the fuel jets impinge against the peripheral wall upstream of the sharp edge (4). The fuel, under the combined effect of its kinetic energy and the action of the rotating air, is detached at the sharp edge (4) from the peripheral wall (3) in the tangetical direction and impinges again on the peripheral wall under the plug (9), which is located at a radial distance from the axis (11) which is greater than that of the sharp edge.
GB28439/68A 1967-06-24 1968-06-14 Internal combustion engine with fuel injection Expired GB1204947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671576004 DE1576004A1 (en) 1967-06-24 1967-06-24 Internal combustion engine with external ignition

Publications (1)

Publication Number Publication Date
GB1204947A true GB1204947A (en) 1970-09-09

Family

ID=5678790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28439/68A Expired GB1204947A (en) 1967-06-24 1968-06-14 Internal combustion engine with fuel injection

Country Status (2)

Country Link
US (1) US3550566A (en)
GB (1) GB1204947A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344717A1 (en) * 1976-03-19 1977-10-14 Maschf Augsburg Nuernberg Ag COMBUSTION PROCESS AND DEVICE FOR IMPLEMENTING THIS PROCESS IN INTERNAL COMBUSTION ENGINES WITH EXTERNAL IGNITION AND OVERCOMPRESSION
FR2361536A1 (en) * 1976-08-10 1978-03-10 Maschf Augsburg Nuernberg Ag AIR COMPRESSION AND DIRECT INJECTION MOTOR

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035964B2 (en) * 1971-12-25 1975-11-20
JPS554515Y2 (en) * 1974-07-24 1980-02-01
JPS59687B2 (en) * 1977-09-27 1984-01-07 トヨタ自動車株式会社 Combustion chamber of internal combustion engine
DE3034824C2 (en) * 1979-09-18 1982-08-19 Hans Prof. Dipl.-Ing. Dr.Dr.h.c. 8020 Graz List Internal combustion engine with direct fuel injection
JPH086590B2 (en) * 1985-12-10 1996-01-24 いすゞ自動車株式会社 Combustion chamber of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344717A1 (en) * 1976-03-19 1977-10-14 Maschf Augsburg Nuernberg Ag COMBUSTION PROCESS AND DEVICE FOR IMPLEMENTING THIS PROCESS IN INTERNAL COMBUSTION ENGINES WITH EXTERNAL IGNITION AND OVERCOMPRESSION
FR2361536A1 (en) * 1976-08-10 1978-03-10 Maschf Augsburg Nuernberg Ag AIR COMPRESSION AND DIRECT INJECTION MOTOR

Also Published As

Publication number Publication date
US3550566A (en) 1970-12-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees